In August 2007, in the second round of the Orange Prokom Open in Sopot, a seaside resort in Poland, there was a tennis match. And in the course of this tennis match, Betfair noted what appeared to be unusual betting patterns.

So unusual, in fact, that initially Betfair refused to pay out on the winner. A full independent investigation was mounted by the tennis authorities which cleared the players of any wrong-doing.

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